Forum > GPU crunching
AK V8 + CUDA MB team work mod
jj_glos:
--- Quote from: popandbob on 27 Jan 2009, 11:01:11 pm ---As expected it only uses 1 GPU on multi GPU setup...
So far so good though...
--- End quote ---
Anyone got any ideas on how to get 2 GPU going? It pains me to leave one idle...
YukonTrooper:
I'm getting lots of computation errors. Cuda app running fine + 4x AK V8 running fine, but fifth AK V8 will start and stop at 8-9 seconds with computation error. Fifth AK V8 starts again and repeats. Computation errors stack up quick! I'm doing SETI and SETI Beta, but only installed package to setiathome.berkeley.edu folder not setiathome.berkeley.edu_beta folder.
Specs:
i7 920
GTX 260 216SP w/178.xx
theoldman:
Hi there.
Some errors from me:
--- Quote ---SETI@home error -12 Unknown error
cudaAcc_find_triplets erroneously found a triplet twice in find_triplets_kernel
File: d:/BTR/seticuda/seti_boinc/client/cuda/cudaAcc_pulsefind.cu
Line: 236
--- End quote ---
In this result: http://setiathome.berkeley.edu/result.php?resultid=1138810950
Computer specs here: http://setiathome.berkeley.edu/show_host_detail.php?hostid=3503812
No overclock in CPU or videocard, video driver is 181.22 WHQL.
Raistmer:
--- Quote from: jj_glos on 30 Jan 2009, 12:35:51 am ---
--- Quote from: popandbob on 27 Jan 2009, 11:01:11 pm ---As expected it only uses 1 GPU on multi GPU setup...
So far so good though...
--- End quote ---
Anyone got any ideas on how to get 2 GPU going? It pains me to leave one idle...
--- End quote ---
Yes.
Use V7x package. It relies on BOINC GPU scheduling and will use both yours GPU. But will not do SETI MB on CPU.
But you can do SETI AP on CPU, with opt app too.
So this V8 "team" mod doesn't make V7x packages obsolete, it just provide another way - in one config some way will lead to better performance, in other configs it will be another way.
So, for dual/many GPU configs I strongly recommend to use V7 of my package, not V8 one.
Raistmer:
--- Quote from: YukonTrooper on 30 Jan 2009, 01:55:01 am ---I'm getting lots of computation errors. Cuda app running fine + 4x AK V8 running fine, but fifth AK V8 will start and stop at 8-9 seconds with computation error. Fifth AK V8 starts again and repeats. Computation errors stack up quick! I'm doing SETI and SETI Beta, but only installed package to setiathome.berkeley.edu folder not setiathome.berkeley.edu_beta folder.
Specs:
i7 920
GTX 260 216SP w/178.xx
--- End quote ---
Could you provide link on that host, please?
5th AK v8 (first one, actually) shouldn't take 8-9 seconds. It should take 0 seconds to pass control to CUDA MB....
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